Electrical relay



2 Sheets-Sheet 1. C. ADER.

ELECTRICAL RELAY No. 256,262. Patented Ap r. 11,1882.

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ELECTRICAL RELAY.

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No. 256,262. Patentd Apr.11,1882.

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SPECIFICATION forming part of Letters Patent No. 256,262, dated April 11, 1882.

Application filctl Scptcmhcrifil. 1881. (No inotlcl.) l ttnictl in France Mn; 1th, 1:51, in linglnntl July 7, 15:31, in Belgium July 8,

1881. in IlulyAugusl l, 1881, in 31mm October '7.

To (ill whom it may concern.-

Be it known that l, CLEitnt'r Anion, n zen of the Frolic: Republic, residing i z i France, have invented cc ruin lsnpro vvtnei in Electrical Relays, of which the i'ollowing 2i specification.

The object of my invention is to provide relay or other electro'msgnct which is c nisitcly sensitive to feeble currents, hi1, re ilesignetl most especially to meet the wnnts oi telephone control ol'liccs, where it rein is commonly placed in the snhscrihors circuit to ninnipulntc a local circuit which operates thorn nnnointor, denoting that the subscriber w'shes to speak.

The batteries ntihe st iscrioers [ices usually produce n. current of but slighti tensity, so that on a long line it oecoi o feeble when it reaches the central othcc, anti hence it very sensitive relay is net'rileti to he aifecteil by it.

In the accompanying drawings, Figures 1 to 6 show the preferrcilform of in Figs. 5 and 6 ilinstrnte its applicat on in :i Cele-hone I will first describe the preferred i'orni of my relay, referring to Figs. 1 to 4 Figure 1 is a front elevation. i i Fig. 3 is a trnusrcrse section, she the relay in side elevation; ou i Inent oi Fig. 3, showing- 2: (ll making the connection.

A is it permanent ning'net, tori tinuonslyxcitetl clectro-mngne its poles N S come near together, use two of these magnets for each being arranged stile by side, as shown in 1 811L112, null bciugoppositolypolo their manufacture, so that thcl will be north pole, while iii other will be it south pole.

)v magnet. on electric coil or helix, I

ed from a pivot, tr, above, so that t the poles ot'thc magnets tintl betwe of the two nmgnots, being 'l'rcc-io plane parallel witu the magnets, bring the magnetic attraction its no H as possible, tingle-pieces G (l, of m ore fixed to the poles oi. the run 10* not project toward the coil H. iihepivot .t is inounteil in two supports, tt a, and the stem it of t e coil H is continued above the pivot and locnr: I

193i, untl in A uslrin-lluugnry October-29, 1851.

l l i 1 ms are tire-l to the blocha and con ncct ugh it to the metal of the magnets, whcnce connection is established with one pole of the local battery, as will be presently dcscz-ibetl. Tlhc contact fl is at other times insniutetl from the urn: i either by the block b, the pivot-pins rare embedded, being of insuintiug substance or otherwise. The nl wires o'i'ihe coil iii are lettered F F, i 3' nncet, through binding-platesfj" llltllilg-708i$ or otherwise, with the linelending to the suhscribefis office. In Fig. .l ham shown these wires 1' F as connected. through screws entering the block 7); but in Fl? 4 1 here shown them as simply pnsseil the insulated pivot-pins :1: Ll.

it w be evident to those versed in physi it current hcsent through the line-cirl the snhscrihefs oiiice it will traverse and oi" the pieces G G 'eei itnntl thel'roni; poles,

, Het/rersn lepentling on the direction or he cnrrnit. c; so the point '1 touches one of the arms 2 still closes the local circuit-i The residual magnetism of ordinary relays null other rgromngrnets I overcome from mg coil H the usual magnetic iron, either using no core or else it c some non-magneticnietnh This is on :in front :inti valuable le; turn in my relay,

gtcntily LG its scnsiiireness, which by the use oi the counierpoisc l" and the omission citing-st lllgn nml other obstacles 'i siinlion of magnetic action. is alin' partial diagram the accestinl oiiicc in connection. with cult.

l} is the subscribers circuit, at part only of magnets A A being omitted and the remaining parts designated by the same refercnceleh tars used in Figs. 1 to 4.

L is a local circuit, arranged to be closed by the relay at 1 t. lis a battery in said circuit.

K is the indicatoralready referred to, which consists of an electro-magnet, 7;, included in the circuit L, an armature detect-lever m, and r hinged drop or screen, a, which when released hy the charging of the magnet drops and ere poses the number corresponding to the subscribers circuit 0, all as is common; and I) is a commutator, on the principleof the American jackkniic" commutator, for connecting by means of conduc'ing pegs and cords the subscribers who wish to converse.

The preferred arrangement of my relays for telephonecentralcdices will be best understood from Fig. 5, where the relays are viewed as in Fig". 1, and where the circnit-connections i'or eightsubscribcrs are shown in diagram. These circuits 0 C are numbered 1, 2, 3, &c., and the relays 1t 1%, indicators K K, and commutators D D are correspondingly numbered.

It will here be observed that one local battery 1 serves foall the circuits L L, and that the relays it it are arranged in battery, the magnet A on one side of one coil 11 serving as that on the other side of the next coil. lhe magnets A A are all metallieally connected with a screw, (1, whence a wire leads to one pole of the battery I.

it. is evident that. the form of my relay shown in Figs. 1 to L is not necessarily the on'y form of which it is capable, since the same essential construction may be carried out by constructions apparently very different-as, for example, by that shown in Fig. 7, where the axis ot'the pendulum is vertical, so that the coil moves in a horizontal plane close along a horizontally-arranged bar-magnet, moving toward one pole or the other of thcmagnet, ac-

' cording to the direction of the current traverslug it. I

i am aware that various arrangements of a movable coil in connection with tixed magnets have been suggested, a common method being to inclose one pole of the magnet in the coil. My arrangement diti'ers from all others with which I am acquainted, in that the coil incloses no magnet nor core, and hence the retarding etiect of residual magnetism is entirely overcome. Furthermore, [cause the coil to'move in a directional; right angles to its axis, and in my preferred construction I balance the magnetic action by disposing opposite poles on opposite sides of the coil and equidistant therefrom.

I claim as my invention- 'l. The combination oi an electric coil having no core, delicately mounted and free to move l l l in a direction at right angles-,or substantially so, to its axis, with a magnetic pole arianged within attractive range of said coil and to one side of its path oi" motion, substantially as set forth.

2. The combination of an electric coil having; no core, delicately mounted and free to move in adirection at: substantially right angles to its axis, with two unlike magnetic poles arranged oppositcio each other within attractive range of the coil and one on each side oi" its path of motion, whereby the coil when at tractcd to them will move between them, substantially as set t'orth.

3. ihc combination ot' a delicately-mounted electric coil, having no core and i'rcc to move in a direction substantially at right angles to its axis, with two unlike magnetic poles ar anged within attractive range oi the coil, both on the same side of its path of motion, and the two on opposite sides of its normal or intermediate position, substantially as set forth.

4. The combination ot'n dclicately-mounted electric coil, having; no core and tree to move in a direction at substantially right angles to its axis, with tour magnetic poles arranged in two pairs, with like poles diagonally opposite to each other and unlike poles directly opposite to each other, the two unlike poles oi -ach pair arranged on opposite sides oi'thc path ofniovnment of the coil, and the two pairs arranged one on each side of the normal or intermediate positionol' the coil, and within attractive range thereof, substantially as set forth.

5. The combination, to i'orm a. relay, ot' a peudulously-hnngr stem or lever, an electric coil mounted upon one arm thcreot', an adjustable connterpoisc mounted on the opposite arm thereof, a contact-point borne by said stem or lever, a tixed contact-stop against. which said point may impinge upon the movement of the coil from its normal position ot' rest, and

one or more tired magnetic poles arranged within attractive range oi the coil, substantially as set forth.

o. The combination of a series of magnets, A A, arranged side by side, their pole-extensions G (l, the blocks a. a, mounted in the magnets, the pendulous stems it 1, ai angcd one in each of the spaces between the magnets and hung from the blocks a. u, the contact-pins '1 'l, the contact-stops l) l), and the coils ll ii, substantially as set forth.

In witness \vhcreot'l have hereunto signed my name in the prrscnce of two subscribing witnesses.

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Witnesses:

M. ROUGEMHN'I, l-ton'r. M. vlloonnn. 

